Home / 115,519.45-159,415.53-67,763.62

Finding the Fourth Proportional to 115,519.45, 159,415.53 and 67,763.62

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Solution

The fourth proportional to 115,519.45, 159,415.53 and 67,763.62 is: 93,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,519.45 : 159,415.53 = 67,763.62 : x
  2. Step 2: Convert to fraction form
    115,519.45/159,415.53 = 67,763.62/x
  3. Step 3: Cross multiply
    115,519.45x = 159,415.53 × 67,763.62
  4. Step 4: Simplify right side
    115,519.45x = 10,802,573,397.02
  5. Step 5: Solve for x
    x = 10,802,573,397.02/115,519.45
  6. Step 6: Final answer
    x = 93,513.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.